<?php if (!defined('THINK_PATH')) exit();?><select name="cid">
    <option value="">
        请选择
    </option>
    <?php if(is_array($res1)): foreach($res1 as $key=>$v): ?><option value="<?php echo ($v['id']); ?>">
            <?php echo ($v["title"]); ?>
        </option><?php endforeach; endif; ?>
</select>